Journal of Experimental and Theoretical Physics Letters

Active stabilization of the optical part in fiber optic quantum cryptography

Kirill A. Balygin, Andrey N. Klimov, S. P. Kulik, S. N. Molotkov

Published Mar 1, 2016• 7 citations

Abstract

The method of active stabilization of the polarization and other parameters of the optical part of a two-pass fiber optic quantum cryptography has been proposed and implemented. The method allows the completely automated maintenance of the visibility of interference close to an ideal value ( V ≥ 0.99) and the reduction of the instrumental contribution to the error in primary keys (QBER) to 0.5%.

DOI: 10.1134/s0021364016060023

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